Fig. 1.

Evolution of the SSFP signal profile in the MR physics literature. The original 1958 version (Carr, 1958) boasted a distinct “Do-It-Yourself” feel, which had evolved by 1988 to a more minimalist form (Zur et al., 1988). By 2007, several major innovations had occurred, including a vast menagerie of fonts, gratuitous drop shadows and copious use of color (Miller et al., 2007). What a difference 50 years can make!